write short note in electron
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An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom), or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. ... The charge on a single electron is considered as the unit electrical charge.
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An electron is a negatively charged subatomic particle. It can be either free or bound to the nucleus of a atom
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